CN209264855U - Transformer defects simulation equipment - Google Patents

Abstract

The utility model relates to a kind of transformer defects simulation equipment, comprising: ontology, high-tension insulating bushing and air inlet-outlet device；The ontology has cavity, the high-tension insulating bushing setting is on the body and outside the cavity, ground electrode and high-field electrode are respectively arranged in the cavity, one end of the high-field electrode passes through the ontology and connects with the high-tension insulating bushing, the air inlet-outlet device is connected to the side of the ontology and is connected to the cavity, wherein, the air inlet-outlet device has disengaging gas opening, and the disengaging gas opening is used for input and output gas.Above-mentioned transformer defects simulation equipment, discharge fault can occur in the cavity using SF6 gas as insulation cooling medium and under high-pressure situations for defect sample discharge between turn-to-turn electric discharge or cake, it generates and decomposes gas, decomposition gas is generated to simulate SF6 gas in discharge fault, to be used to the insulation defect of analogue transformer.

Description

Transformer defects simulation equipment

Technical field

The utility model relates to gas-insulated transformer technical fields, propose more particularly to a kind of transformer Defect Modes It is standby.

Background technique

Gas-insulated transformer is with SF₆A kind of transformer of the gas as insulation cooling medium, gas-insulated transformer English name be Gas-Insulated Transformer, referred to as GIT.Oil-immersed type transformer in the event of a failure, is easy to draw The violent decomposition of transformer oil is played, bulk gas is generated, there is the danger of explosion and burning.And SF₆The nonflammable chemistry of gas is special Property, so that SF₆When gas-insulated transformer breaks down, it will not explode and not catching fire, no fire hazard.

Due to SF₆Gas-insulated transformer is in the reliability of safe operation, fire prevention, explosion-proof, noise control, diminution land occupation face Product, mitigate weight, anti-oil pollution etc. shows excellent performance, therefore, gas-insulated transformer in underground substation and The places such as narrow space, urban district densely populated, fire protection requirement is high using increasingly extensive.SF₆Transformer is electric system weight The transformer equipment wanted, operating status directly affect the safety of system.Although to SF₆Transformer gas analysis proposes related Supervision standard, and relevant supervision standard is also being continuously updated according to actual operating condition, but due to SF₆Transformer Operating condition and the complicated multiplicity of failure mode, so that establishing mature SF₆Transformer gas analysis detection project, period and supervision Standard, which seems, to be increasingly urgent to.With SF₆Transformer is in the increase of China's operation time limit, and it is necessary to according to actual motion completely for we Situation effective supervision standard related to the experience accumulated foundation.

The failures such as overheat, shelf depreciation, flashover and electric arc may occur in operation for transformer, and SF₆Gas-insulated Transformer is with SF₆When as dielectric, being deposited in the case of a fault inside equipment, such as overheat, electric discharge failure occur, HF, CF can be generated₄、SOF₂、SO₂F₂、SOF₄、S₂F₁₀、S₂F_10O、SO₂And SF₄Equal impurity.Thus, detect the content of characteristic gas It is SF₆The effective ways of gas transformer fault diagnosis.However, there is no a kind of feasible defects simulation devices at present, it can Simulate SF₆Gas is generated in discharge fault decomposes gas, to be used to simulate SF₆Exemplary insulative defect in gas transformer, SF can be studied₆The equipment shape of the changing rule of characteristic quantity and assessment gas-insulated transformer under gas transformer difference defect State.

Utility model content

Based on this, it is necessary to become for that there is no a kind of feasible defects simulation device, can be used to simulate gas at present Exemplary insulative defect in depressor, with being capable of the changing rule of characteristic quantity and assessment gas under learning gas transformer difference defect The problem of equipment state of insulating transformer, provides a kind of transformer defects simulation equipment.

A kind of transformer defects simulation equipment, comprising: ontology, high-tension insulating bushing and air inlet-outlet device；The ontology tool There is cavity, the high-tension insulating bushing setting is respectively arranged in the cavity on the body and outside the cavity Ground electrode and high-field electrode, one end of the high-field electrode pass through the ontology and connect with the high-tension insulating bushing, it is described into Air-out apparatus is connected to the side of the ontology and is connected to the cavity, wherein there is the air inlet-outlet device disengaging gas to open Mouthful, the disengaging gas opening is used for input and output gas.

In one of the embodiments, the air inlet-outlet device include into outlet passageway and disengaging gas control valve, it is described into Leaving air control valve includes two-port valve or triple valve, the first end into outlet passageway be connected to the side of the ontology and with institute Cavity connection is stated, the second end into outlet passageway is connected to and in communication with the disengaging gas control valve, the disengaging gas control system Valve is open with the disengaging gas.

The transformer defects simulation equipment further includes transparent cover body in one of the embodiments, and the ontology opens up There are visual windows, the visual windows are connected to the cavity, and the transparent cover body is connected to the side of the ontology and sealing The visual windows.

The transformer defects simulation equipment further includes temperature control equipment in one of the embodiments, the temperature Control device includes temperature sensor and heating tube, and the temperature sensor and the heating tube are separately positioned on the cavity It is interior.

The transformer defects simulation equipment further includes heating device in one of the embodiments, the heating device Setting is in the cavity.

The heating device includes nichrome heater and insulator foot, the insulation in one of the embodiments, The bottom of the cavity is arranged in pedestal, and the nichrome heater is arranged on the insulator foot.

The transformer defects simulation equipment further includes terminal board in one of the embodiments, the terminal board setting On the body and it is located at outside the cavity.

The transformer defects simulation equipment further includes water feed apparatus in one of the embodiments, the water feed apparatus It is connected to the side of the ontology and is connected to the cavity, wherein the water feed apparatus has water filling port, and the water filling port is used In water filling.

The water feed apparatus includes water inlet line, triple valve and teat glass, the water inlet in one of the embodiments, The first end of pipeline is connected to the side of the ontology and is connected to the cavity, the second end of the water inlet line and described three The opening connection of port valve first, the second opening of the triple valve connect towards the setting of the bottom of the ontology and with the teat glass It connects, the third opening of the triple valve is the water filling backwards to the third opening of the setting of the bottom of the ontology and the triple valve Mouthful.

The water feed apparatus further includes syringe in one of the embodiments, the third of triple valve opening with it is described Syringe connection.

Above-mentioned transformer defects simulation equipment, can be by SF due to passing through air inlet-outlet device₆Gas, which is filled into cavity, to be made For the cooling medium that insulate, defect sample can connect by ground electrode and high-field electrode and provide high pressure to defect sample, so that lacking Sunken sample in the cavity can be with SF₆Gas occurs discharge fault as insulation cooling medium and under high-pressure situations and carries out turn-to-turn It discharges between electric discharge or cake, generates and decompose gas, to simulate SF₆Gas is generated in discharge fault decomposes gas, to be used to mould The insulation defect of quasi- transformer is that the changing rule of characteristic quantity and assessment gas are exhausted under learning gas insulating transformer insulation defect The equipment state of edge transformer lays the foundation.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the transformer defects simulation equipment of an embodiment of the present invention.

Specific embodiment

To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, with reference to the accompanying drawing to this The specific embodiment of utility model is described in detail.Many details are explained in the following description in order to abundant Understand the utility model.But the utility model can be implemented with being much different from other way described herein, this field Technical staff can do similar improvement without prejudice to the utility model connotation, therefore the utility model is not by following public affairs The limitation for the specific embodiment opened.

In the present invention unless specifically defined or limited otherwise, fisrt feature is in the second feature " on " or " down " It can be that the first and second features directly contact or the first and second features are by intermediary mediate contact.Moreover, first is special Sign can be fisrt feature above the second feature " above ", " above " and " above " and be directly above or diagonally above the second feature, or only Indicate that first feature horizontal height is higher than second feature.Fisrt feature under the second feature " below ", " below " and " below " can be with It is that fisrt feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.And And " top " and " lower section " in the utility model only indicates relative position, is not offered as absolute position.

It should be noted that it can be directly another when element is referred to as " being fixed on " or " being set to " another element On one element or there may also be elements placed in the middle.When an element is considered as " connection " another element, it can be with It is directly to another element or may be simultaneously present centering elements.Term as used herein " vertically ", " level ", "upper", "lower", "left", "right" and similar statement for illustrative purposes only, be not offered as being uniquely to implement Mode.

In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include at least one this feature.The meaning of " plurality " is at least two, such as two in the description of the present invention, It is a, three etc., unless otherwise specifically defined.

The utility model discloses a kind of transformer defects simulation equipment, as shown in Figure 1, the transformer defects simulation equipment 10 include: ontology 100, high-tension insulating bushing 200 and air inlet-outlet device 300；The ontology 100 has cavity 110, the height It presses insulating sleeve 200 to be arranged on the ontology 100 and be located at outside the cavity 101, is respectively arranged with ground in the cavity 101 One end of electrode 110 and high-field electrode 120, the high-field electrode 120 passes through the ontology 100 and the high-tension insulating bushing 200 connections, the air inlet-outlet device 300 are connected to the side of the ontology 100 and are connected to the cavity 101, wherein described Air inlet-outlet device 300 has disengaging gas opening 321, and the air inlet/outlet 321 is used for input and output gas.The defect sample 20 is set It sets and in the cavity 101 and is being connected between the high-field electrode 120 and the ground electrode 110, the high-field electrode 120 One end is by the high-tension insulating bushing 200 for connecting high pressure HV.

The transformer defects simulation equipment of the present embodiment, can be by SF due to passing through air inlet-outlet device₆Gas is filled into chamber In vivo as insulation cooling medium, defect sample can connect by ground electrode and high-field electrode and provide high pressure to defect sample, So that defect sample in the cavity can be with SF₆Gas as insulation cooling medium and under high-pressure situations occur discharge fault into It discharges between the electric discharge of row turn-to-turn or cake, generates and decompose gas, to simulate SF₆Gas is generated in discharge fault decomposes gas, thus It is the changing rule of characteristic quantity and assessment under learning gas insulating transformer insulation defect for the insulation defect of analogue transformer The equipment state of gas-insulated transformer lays the foundation.

Specifically, the ontology be transformer tank body, the transformer tank body have cavity with for place sample and to Sample provides experiment condition, and high-field electrode and ground electrode are provided in cavity for connecting defect sample.The high-pressure insulating ring Pipe is 110KV casing, and 1min industrial frequency withstand voltage is 230kV, and the high-tension insulating bushing is used to high pressure accessing high-field electrode, with High pressure is provided to defect sample.The air inlet-outlet device is used to be connected to cavity and the external world, so that gas can be from disengaging gas opening It enters in cavity, the intracorporal gas of chamber can also be from disengaging gas opening discharge, for example, being research with SF₆Gas is as insulation The defect of the transformer of cooling medium, the disengaging gas opening is for injecting SF₆Gas and for be discharged defect sample electric discharge SF afterwards₆The decomposition gas of gas.For example, disengaging gas opening can be with one, it may be multiple for passing in and out gas opening.For example, multiple Disengaging gas opening may include at least one air inlet openings and at least one outlet opening, i.e. air inlet and outlet separates.For example, working as gas When body enters from disengaging gas opening, disengaging gas opening is connected with feeder, and feeder is for providing SF₆Gas works as gas From when disengaging gas opening discharge, disengaging gas opening is connected with collection device, and acquisition device is for collecting SF₆Gas after gas decomposition Body.

It controls whether that gas is allowed to enter cavity for convenience, in one of the embodiments, as shown in Figure 1, the disengaging Device of air 300 includes into outlet passageway 310 and disengaging gas control valve 320, and the disengaging gas control valve 320 includes two-port valve or three Port valve, the first end into outlet passageway 310 are connected to the side of the ontology 100 and are connected to the cavity 101, institute The second end stated into outlet passageway 310 is connected to and in communication with the disengaging gas control valve 320, and the disengaging gas control valve 320 has There is the disengaging gas opening 321.By the way that two-port valve or triple valve is arranged in the second end of disengaging feed channel, can easily control Whether allow gas to enter cavity or be discharged from cavity, i.e., easily controls and be filled with SF in cavity₆SF in gas or collection chamber₆ The gas that gas decomposes.

The two-port valve has a disengaging gas opening in one of the embodiments, i.e. two-port valve air inlet and out Gas is in the same opening.In this way, relatively simple using two-way valve structure and operation.The threeway in one of the embodiments, There are two the disengaging gas to be open for valve tool, one of them described disengaging gas opening is used for air inlet, one of them described disengaging gas is opened Mouth is used for outlet, i.e. triple valve air inlet and outlet is in different openings.In this way, make air inlet using triple valve and gas is taken to separate, three Port valve can connect feeder and collection device simultaneously, without feeder and collection device are taken off replacement.

In order to make cavity be isolated from the outside world when not needing air inlet and taking gas, in one of the embodiments, such as Fig. 1 institute Show, the air inlet-outlet device 300 further includes switch 330, and the switch 330 setting is described on outlet passageway 310 and being located at Between the ontology 100 and the disengaging gas control valve 320, the switch 330 is used to open or closes described into outlet passageway 310, to control the on-off between disengaging gas control valve 320 and cavity 101.In this way, can not need air inlet by switch and take So that cavity is isolated from the outside world when gas, avoid the flow of gas in leakage and more accurate control chamber body, improves experimental result Accuracy.

For the air pressure tested in disengaging feed channel, in one of the embodiments, as shown in Figure 1, the disengaging gas fills Setting 300 further includes air gauge 340, and the air gauge 340 setting is described on outlet passageway 310 and being located at the ontology 100 Between the disengaging gas control valve 320, the air gauge 340 is used to test the air pressure in disengaging feed channel 310.Pass through setting Air gauge can test air pressure namely the intracorporal air pressure of chamber in disengaging feed channel, thus according to circumstances to cavity and disengaging tracheae Air pressure in road is adjusted, to study the changing rule of decomposition product under different air pressures.For example, barometric accuracy selection 0.05 grade.

In order to facilitate the circulation of gas in the cavity, in one of the embodiments, as shown in Figure 1, the disengaging gas fills 300 are set to be arranged adjacent to the bottom of the ontology 100.Since gas density is lower, the bottom of air inlet-outlet device adjacent body is set It sets, it is convenient when gas being made to enter cavity to be spread around from bottom, so that defect sample when setting defect sample in cavity is filled That divides touches gas.

In order to facilitate the observation intracorporal discharge scenario of chamber, in one of the embodiments, as shown in Figure 1, the transformer Defects simulation equipment further includes transparent cover body 400, and the ontology 100 offers visual windows 401, the visual windows 401 with The cavity 101 is connected to, and the transparent cover body 400 is connected to the side of the ontology 100 and seals the visual windows 401. It is sealed against by opening up visual windows on the body, and using transparent cover body, then can facilitate observation cavity by transparent cover body Interior discharge scenario.For example, the transparent cover body be quartz glass, the quartz glass with a thickness of 20mm, diameter is 100mm。

Discharge scenario is observed in order to facilitate user, it is in one of the embodiments, as shown in Figure 1, described visual Window 401 is arranged adjacent to the top of the ontology 110.Due to highly too low unsuitable user's observation, by the way that visual windows are adjacent The top setting of nearly ontology, facilitates user to observe the intracorporal discharge scenario of chamber.

For the intracorporal environment temperature of adjusting cavity, in one of the embodiments, as shown in Figure 1, the transformer defect Analog machine further includes temperature control equipment 500, and the temperature control equipment 500 includes temperature sensor 510 and heating tube 520, the temperature sensor 510 and the heating tube 520 are separately positioned in the cavity 101.Specifically, the temperature passes Sensor 510 and the heating tube 520 are separately positioned in the cavity 101 and one end of the temperature sensor 510 and described One end of heating tube 520 is separately fixed on the side wall of the ontology 110.Since environment temperature is lower, and the reality of transformer The temperature of working environment is higher, about at 80 DEG C or so, by the way that temperature control equipment is arranged, utilizes temperature sensor real-time detection Cavity inner temperature, when cavity inner temperature and temperature settings are unequal, such as desired temperature is 80 DEG C, and cavity inner temperature is small In 80 DEG C, control heater fever makes to reach 80 DEG C in entire cavity by heat radiation, thermal convection, when restoring transformer work Actual environment, eliminate temperature and the transformer inconsistent influence to result in actual work, further increase experimental result Accuracy.For example, the temperature sensor is thermocouple temperature sensor.

In order to facilitate setting temperature sensor, the side of the ontology offers installation and opens in one of the embodiments, Mouthful, the probe of the temperature sensor is arranged in the cavity, and one end of the temperature sensor passes through the installation and opens Mouth stretches out outside the cavity.Construction opening is opened up by the side in ontology, is facilitated temperature sensor is fixed on the body.Example Such as, the probe of the temperature sensor is located at the lower section of the ground electrode.

In order to provide suitable temperature to cavity, the heating tube is U-shaped heating tube in one of the embodiments,.Institute 100 DEG C of maximum operation temperature for stating U-shaped heating tube make gas in entire cavity reach 80 DEG C by heat radiation, thermal convection, give chamber Suitable temperature is provided in vivo, restores actual environment.

In order to study influence of the hot-spot to transformer, in one of the embodiments, as shown in Figure 1, the transformation Device defects simulation equipment further includes heating device 600, and the heating device 600 is arranged in the cavity 101.By in cavity Interior setting heating device, when being heated to cavity, so that local temperature is increased to overheat in cavity, office in analogue transformer Portion's overheating fault, to study influence of the hot-spot to transformer.For example, bulk temperature is 80 DEG C in cavity, heating device Cavity is heated so that local temperature reaches 200 DEG C to 300 DEG C.

It is sufficiently high in order to be heated to cavity local temperature, it is in one of the embodiments, as shown in Figure 1, described Heating device 600 includes nichrome heater 610 and insulator foot 620, and the insulator foot 620 is arranged in the cavity 101 bottom, the nichrome heater 610 are arranged on the insulator foot 620.For example, the insulator foot is PET (Polyethylene terephthalate, polyethylene terephthalate) film.By the way that nichrome heater is arranged As the pyrotoxin of hot-spot defect, local maximum temperature can be made to reach 300 DEG C.

In order to which the extraction of the lead of the intracorporal each device of chamber to be connect with external circuitry, in one of the embodiments, such as Shown in Fig. 1, the transformer defects simulation equipment further includes terminal board 700, and the terminal board 700 is arranged in the ontology 110 It goes up and is located at outside the cavity 101.It can be led to by the way that terminal board is arranged after the lead of each device is stretched out out of cavity in cavity It crosses terminal board to connect with external circuitry, to device power supply each in cavity.For example, being provided with the temperature sensing in the cavity Device, the heating tube and the nichrome heater, the lead of the temperature sensor, the lead of the heating tube and described The lead of nichrome heater both passes through the ontology and connect with the terminal board.For example, the quantity of the temperature sensor It is 4, monitors in cavity two groups of temperature, monitor one group of heating tube, monitors one group of nichrome heater, required interface There are four groups of temperature sensor data lines to both pass through ontology to connect with terminal board, for example, heating tube power supply line and nichrome fever Body power supply line both passes through ontology and connect with terminal board.

In order to study influence of the micro-moisture to gas decomposition product, in one of the embodiments, as shown in Fig. 1, institute Stating transformer defects simulation equipment further includes water feed apparatus 800, and the water feed apparatus 800 is connected to the side of the ontology 110 And it is connected to the cavity 101, wherein the water feed apparatus 800 has water filling port 801, and the water filling port 801 is for filling the water. It, can be and outer first to being vacuumized in cavity, so that be low pressure in cavity before each device is started to work in the cavity Boundary forms negative pressure, by the way that water feed apparatus is arranged, can inject micro-moisture by water filling port, moisture is fast under the action of negative pressure Speed vaporization becomes water vapour and enters in cavity, to change the intracorporal moisture content of chamber, research micro-moisture is to gas point Solve the influence of product.

Enter in cavity in order to control moisture, the water feed apparatus includes water inlet pipe in one of the embodiments, Road, triple valve and teat glass, the first end of the water inlet line are connected to the side of the ontology and are connected to the cavity, The second end of the water inlet line and the triple valve first opening connect, and the second opening and the glass of the triple valve try The third opening of pipe connection, the triple valve is the water filling port, for filling the water.By the way that teat glass, a certain amount of water is arranged It point enters in teat glass and to store from water filling port, when needing to change the intracorporal moisture of chamber, open the valve of teat glass, make Quantitative moisture becomes water vapour under the action of negative pressure and enters in cavity, enters the intracorporal moisture of chamber so as to control Content.For example, teat glass has scale.In this way, the content of moisture in teat glass can be read by scale.For example, Teat glass is heated by electrothermal blowing, accelerates the vaporescence of the moisture in teat glass, so that the moisture of teat glass More rapidly enter in cavity.

It is filled the water for convenience toward teat glass and is easily accessible moisture in cavity, it is described in one of the embodiments, Second opening of triple valve is arranged towards the bottom of the ontology, and the third opening of the triple valve is backwards to the bottom of the ontology Setting.In this way, in the convenient teat glass that moisture is injected into lower section from the water filling port being located above, and work as the valve of teat glass When door is opened, moisture, which becomes water vapour, can be risen in the water inlet line at middle part, to be easily accessible in cavity.

In order to facilitate the content of control moisture, the accuracy of experiment is improved, in one of the embodiments, the water inlet dress Setting further includes syringe, and the third opening of the triple valve is connect with the syringe.Since syringe has scale, it is fed by syringe Water installations water filling, can be convenient the content of control moisture.

It is noted that the selection for defect sample, since transformer is due to the promotion of technique, there is no metal is micro- Grain, tip etc., therefore put using electric discharge and turn-to-turn between the defect sample of single-layer insulation material (around one layer of PET film) progress cake Electricity.Wherein, turn-to-turn discharges: needing to break through flat type copper wire and PET film two layers of insulation material, the voltage being at least resistant to is 25* 170*20*2/1000=170kV；It discharges between cake: other than needing to break through flat type copper wire and PET film two layers of insulation material, also wanting Puncture SF6 gas or by coil gasket edge flashing, even punctures coil gasket, therefore the voltage being at least resistant to is 170+4*8.7 (dielectric strength of SF6 is about 8.7kV/mm under 0.14MPa)=204.8kV, 170+4*14=226kV.

The withstanding voltage of insulating materials is taken as the minimum value in practical situation, and numerical value is greater than the volume of 110kV transformer Fixed power frequency withstanding voltage 200kV in short-term.When considering true type insulation thickness, electric discharge, turn-to-turn electric discharge can not occur between cake.Therefore Only consider situation when defect occurs in insulating layer, in one layer of PET film of copper wire outer wrap, fault simulation is carried out to single layer dielectrics.

Consider single layer dielectrics thickness: turn-to-turn electric discharge: the voltage being at least resistant to is 25*170*2/1000=8.5kV.Between cake Electric discharge: the voltage being at least resistant to be 8.5+4*8.7 (dielectric strength of SF6 is about 8.7kV/mm under 0.14MPa)= 43.3kV 8.5+4*14=64.5kV.In the case where considering nargin, 100kV test voltage is enough to carry out test.Accordingly, it is considered to Annulus is made using oxygen-free copper (consistent with coil-conductor material), sectional area is consistent with the strip conductor of 110kV, is 1.8* 11mm, fillet r are 0.5mm.Take artificial line cake in one layer of PET film of annulus outsourcing.

Therefore, it discharges for turn-to-turn, takes the line cake of two different-diameters, connect high-low pressure pole respectively and form potential difference simulation Turn-to-turn discharge fault.For discharging between cake, two isodiametric line cakes are taken, middle pad insulation spacer or be directly SF₆Gas. Drawbacks described above sample is connected between high-field electrode and ground electrode by the transformer defects simulation equipment of the utility model, Discharge between the electric discharge of analog turn-to-turn and cake.

It is noted that, according to metal can, will use insulating sleeve that can be significantly greatly increased about high-tension insulating bushing The volume of cavity.Single-layer insulation material is only considered when again because of fault simulation, and decomposition product is in large cavity when discharging Content may be lower, is unfavorable for the detection of gas component, therefore be considered as insulating tank.Insulating tank uses epoxy material.Insulation The diameter of tank depends on line cake diameter, considers line cake diameter 200mm, and both sides are from barrel 100mm, therefore overall diameter 400mm.It is high The creepage distance of tank body is considered on degree first, if creepage distance needed for 100kV is about 50mm, is much smaller than actual height.Therefore Mainly from the point of view of the space that each interface is reserved, test product space, total height 300mm.

Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, all should be considered as described in this specification.

Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed, But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.

Claims (10)

1. a kind of transformer defects simulation equipment characterized by comprising ontology, high-tension insulating bushing and air inlet-outlet device；

The ontology has cavity, and the high-tension insulating bushing setting is on the body and outside the cavity, the chamber It is respectively arranged with ground electrode and high-field electrode in vivo, one end of the high-field electrode passes through the ontology and the high-pressure insulating ring Pipe connection, the air inlet-outlet device are connected to the side of the ontology and are connected to the cavity, wherein the air inlet-outlet device With disengaging gas opening, the disengaging gas opening is used for input and output gas.

2. transformer defects simulation equipment according to claim 1, which is characterized in that the air inlet-outlet device includes disengaging Gas channel and disengaging gas control valve, the disengaging gas control valve includes two-port valve or triple valve, described into the first of outlet passageway End is connected to the side of the ontology and is connected to the cavity, the second end into outlet passageway and the disengaging gas control system Valve is connected to and in communication with, and the disengaging gas control valve is open with the disengaging gas.

3. transformer defects simulation equipment according to claim 1, which is characterized in that the transformer defects simulation equipment It further include transparent cover body, the ontology offers visual windows, and the visual windows are connected to the cavity, the transparent cover body It is connected to the side of the ontology and seals the visual windows.

4. transformer defects simulation equipment according to claim 1, which is characterized in that the transformer defects simulation equipment It further include temperature control equipment, the temperature control equipment includes temperature sensor and heating tube, the temperature sensor and institute Heating tube is stated to be respectively set in the cavity.

5. transformer defects simulation equipment according to claim 1, which is characterized in that the transformer defects simulation equipment It further include heating device, the heating device setting is in the cavity.

6. transformer defects simulation equipment according to claim 5, which is characterized in that the heating device includes that nickel chromium triangle closes The bottom of the cavity is arranged in golden heater and insulator foot, the insulator foot, and the nichrome heater setting exists On the insulator foot.

7. transformer defects simulation equipment according to claim 1, which is characterized in that the transformer defects simulation equipment It further include terminal board, the terminal board setting is on the body and outside the cavity.

8. transformer defects simulation equipment according to claim 1, which is characterized in that the transformer defects simulation equipment It further include water feed apparatus, the water feed apparatus is connected to the side of the ontology and is connected to the cavity, wherein the water inlet Device has water filling port, and the water filling port is for filling the water.

9. transformer defects simulation equipment according to claim 8, which is characterized in that the water feed apparatus includes water inlet pipe Road, triple valve and teat glass, the first end of the water inlet line are connected to the side of the ontology and are connected to the cavity, The second end of the water inlet line and the triple valve first opening connect, and the second of the triple valve is open towards the ontology Bottom be arranged and connect with the teat glass, the third of triple valve opening is arranged backwards to the bottom of the ontology and institute The third opening for stating triple valve is the water filling port.

10. transformer defects simulation equipment according to claim 9, which is characterized in that the water feed apparatus further includes needle The third opening of cylinder, the triple valve is connect with the syringe.